Microsoft has released Windows 11 Insider Preview Build 28020.1495 (KB5074168) to the Canary Channel, introducing support for WebP image format in desktop backgrounds along with numerous stability improvements and bug fixes.
WebP Desktop Backgrounds Now Supported
In a move to support modern image formats, Windows 11 now allows users to set .webp images as their desktop background through Settings > Personalization > Desktop Background. This addition brings native support for the increasingly popular WebP format, which offers superior compression and quality compared to traditional formats.
Critical Fixes and Improvements
Start Menu
Fixed an issue where the warning dialog displayed when shutting down while other users were still signed in was truncated by the edge of the Start menu, improving the shutdown experience.
Input and Inking
Resolved a problem that could cause a black flash when using a pen to ink in Snipping Tool, ensuring smoother digital inking experiences.
Power Management
Addressed a critical issue in recent Canary builds where shutdown would appear to restart on some Insider devices, restoring proper power management functionality.
Settings Stability
Fixed issues including:
- Windows Update settings page hanging when loading
- Language features for Australia (English – Australia) not downloading under Settings > Time & Language > Language & Region
Smart Card Reader Compatibility
Resolved bugchecks with IRQL_NOT_LESS_OR_EQUAL error affecting a small number of Insiders using certain smart card readers.
Known Issues
- The desktop watermark is showing the wrong build number (fix coming in a future build)
- File Explorer windows and tabs may unexpectedly jump to Desktop or Home (investigation ongoing)
About the Canary Channel
Builds in the Canary Channel represent the latest platform changes early in the development cycle and should not be seen as matched to any specific release of Windows. Features may never be released, change over time, or be removed based on feedback from Windows Insiders.
Features are rolled out using Controlled Feature Rollout technology, gradually expanding to more Insiders over time.
Note: To get off the Canary Channel, a clean install of Windows 11 is required. Insiders cannot switch to channels receiving builds with lower build numbers without a clean installation.
Source: Windows Insider Blog: Build 28020.1495 (Canary Channel)